-er -ol bbb bbc bbe bbg bbh bbl bbn bbo bbr bcb bcc bce bcg bch bcl bcn bco bcr be- beb bec bee beg beh bel ben beo ber bgb bgc bge bgg bgh bgl bgn bgo bgr bhb bhc bhe bhg bhh bhl bho bhr blb blc ble blg blh bll bln blo blr bnb bnc bne bng bnl bnn bno bnr bob boc boe bog boh bol bon boo bor brb bre brg brh brl brn bro brr c-- cbb cbc cbe cbg cbh cbl cbn cbo cbr ccb ccc cce ccg cch ccl ccn cco ccr ce- ceb cec cee ceg ceh cel cen ceo cer cgb cgc cge cgg cgh cgl cgn cgo cgr ch- chb chc che chg chh chl chn cho chr cl- clb clc cle clg clh cll cln clo clr cn- cnb cnc cne cng cnh cnl cnn cno cnr co- cob coc coe cog coh col con coo cor crb crc cre crg crh crl crn cro crr ebb ebc ebe ebg ebh ebl ebn ebo ebr ec- ecb ecc ece ecg ech ecl ecn eco ecr eeb eec eee eeg eel een eeo eer egb egc ege egg egh egl egn ego egr ehb ehc ehe ehg ehh ehl ehn eho ehr elb elc ele elg elh ell eln elo elr en- enb enc ene eng enh enl enn eno enr eo- eob eoc eoe eog eoh eol eon eoo eor erb erc ere erg erh erl ern ero err gbc gbe gbg gbh gbl gbn gbo gbr gcb gcc gce gcg gch gcl gcn gco gcr ge- geb gec gee geg geh gel gen geo ger ggb ggc ggg ggh ggn ggo ggr ghb ghc ghe ghg ghh ghl ghn gho ghr glb glc gle glg glh gll gln glo glr gnb gnc gne gnl gnn gno gnr gob goc goe gog goh gol gon goo gor grb grc gre grg grh grl grn gro grr hbb hbc hbe hbg hbh hbl hbn hbo hbr hcb hcc hce hcg hch hcl hcn hco hcr he- heb hec hee heg heh hel hen heo her hgb hgc hge hgg hgh hgl hgn hgo hgr hhb hhc hhe hhg hhh hhl hhn hho hhr hlb hlc hle hlg hlh hll hln hlo hlr hnb hnc hne hng hnh hnl hnn hno hob hoc hoe hog hoh hol hon hoo hor hr- hrb hrc hre hrg hrh hrl hrn hro hrr lbb lbc lbe lbg lbh lbl lbo lbr lcb lcc lce lcg lch lcl lcn lco lcr leb lec lee leg leh lel len leo ler lgb lgc lge lgg lgh lgl lgn lgo lgr lhb lhc lhh lho lhr llb llc lle llg lll lln llo llr lnb lnc lne lng lnh lnl lnn lno lnr lob loc loe log loh lol lon loo lor lrb lrc lrg lrh lrn lro lrr nbb nbc nbe nbg nbl nbn nbo nbr ncb ncc nce ncg nch ncl ncn nco ncr ne- neb nec nee neg neh nel nen neo ner ngb ngc nge ngg ngh ngl ngn ngo nhb nhc nhe nhg nhh nhl nhn nhr nlb nlc nle nlg nlh nll nln nlo nlr nnb nnc nne nng nnh nnl nnn nno no- nob noc noe nog noh nol non noo nor nrb nrc nre nrg nrl nrn nro nrr ob- obb obc obe obg obh obl obn obo obr oc- ocb occ ocg och ocl ocn oco ocr oeb oec oee oeg oeh oel oen oeo oer ogc oge ogg ogh ogl ogn ogo ohc ohe ohg ohh ohl ohn oho ohr olb olc ole olg oll oln olo on- onb onc one ong onh onl onn ono onr oo- oob ooc oog ooh ool oon ooo oor or- orb orc ore org orh orl orn oro orr rbb rbc rbe rbg rbh rbl rbn rbo rbr rcb rcc rce rcg rch rcl rcn rco rcr re- reb rec ree reg reh rel ren reo rer rgb rgc rge rgg rgh rgn rgo rgr rh- rhb rhc rhe rhg rhh rhl rhn rho rhr rlc rle rlg rlh rll rln rlo rlr rnb rnc rng rnh rnn rno rnr rob roc roe rog roh rol ron roo ror rrb rrc rrg rrh rrl rrn rrr